ip
ipku.in

IPv4 Subnet Calculator

Enter an IP with a CIDR prefix or a subnet mask to see its network, broadcast, host range, and host count. You can also split the network into smaller subnets.

$ ipcalc
Try:192.168.1.10/2410.0.0.0/8172.16.5.4/20203.0.113.9/29
IPv6 calculator →
private IP (RFC 1918)10.131.152.0/24
network10.131.152.0/24
broadcast10.131.152.255
first host10.131.152.1
last host10.131.152.254
subnet mask255.255.255.0
wildcard0.0.0.255
addresses256
usable hosts254
classA
ipcalc 10.131.152.0/24
address00001010.10000011.10011000.00000000
subnet mask11111111.11111111.11111111.00000000
network00001010.10000011.10011000.00000000
broadcast00001010.10000011.10011000.11111111
green = network part, grey = host part
hex0x0a839800
decimal176396288
reverse dns0.152.131.10.in-addr.arpa
ipv4-mapped::ffff:a83:9800

/24 split into /31 · 128 subnets

close ×
#networkhost rangebroadcast
110.131.152.0/3110.131.152.0 – 10.131.152.110.131.152.1
210.131.152.2/3110.131.152.2 – 10.131.152.310.131.152.3
310.131.152.4/3110.131.152.4 – 10.131.152.510.131.152.5
410.131.152.6/3110.131.152.6 – 10.131.152.710.131.152.7
510.131.152.8/3110.131.152.8 – 10.131.152.910.131.152.9
610.131.152.10/3110.131.152.10 – 10.131.152.1110.131.152.11
710.131.152.12/3110.131.152.12 – 10.131.152.1310.131.152.13
810.131.152.14/3110.131.152.14 – 10.131.152.1510.131.152.15
910.131.152.16/3110.131.152.16 – 10.131.152.1710.131.152.17
1010.131.152.18/3110.131.152.18 – 10.131.152.1910.131.152.19
1110.131.152.20/3110.131.152.20 – 10.131.152.2110.131.152.21
1210.131.152.22/3110.131.152.22 – 10.131.152.2310.131.152.23
1310.131.152.24/3110.131.152.24 – 10.131.152.2510.131.152.25
1410.131.152.26/3110.131.152.26 – 10.131.152.2710.131.152.27
1510.131.152.28/3110.131.152.28 – 10.131.152.2910.131.152.29
1610.131.152.30/3110.131.152.30 – 10.131.152.3110.131.152.31
1710.131.152.32/3110.131.152.32 – 10.131.152.3310.131.152.33
1810.131.152.34/3110.131.152.34 – 10.131.152.3510.131.152.35
1910.131.152.36/3110.131.152.36 – 10.131.152.3710.131.152.37
2010.131.152.38/3110.131.152.38 – 10.131.152.3910.131.152.39
2110.131.152.40/3110.131.152.40 – 10.131.152.4110.131.152.41
2210.131.152.42/3110.131.152.42 – 10.131.152.4310.131.152.43
2310.131.152.44/3110.131.152.44 – 10.131.152.4510.131.152.45
2410.131.152.46/3110.131.152.46 – 10.131.152.4710.131.152.47
2510.131.152.48/3110.131.152.48 – 10.131.152.4910.131.152.49
2610.131.152.50/3110.131.152.50 – 10.131.152.5110.131.152.51
2710.131.152.52/3110.131.152.52 – 10.131.152.5310.131.152.53
2810.131.152.54/3110.131.152.54 – 10.131.152.5510.131.152.55
2910.131.152.56/3110.131.152.56 – 10.131.152.5710.131.152.57
3010.131.152.58/3110.131.152.58 – 10.131.152.5910.131.152.59
3110.131.152.60/3110.131.152.60 – 10.131.152.6110.131.152.61
3210.131.152.62/3110.131.152.62 – 10.131.152.6310.131.152.63
3310.131.152.64/3110.131.152.64 – 10.131.152.6510.131.152.65
3410.131.152.66/3110.131.152.66 – 10.131.152.6710.131.152.67
3510.131.152.68/3110.131.152.68 – 10.131.152.6910.131.152.69
3610.131.152.70/3110.131.152.70 – 10.131.152.7110.131.152.71
3710.131.152.72/3110.131.152.72 – 10.131.152.7310.131.152.73
3810.131.152.74/3110.131.152.74 – 10.131.152.7510.131.152.75
3910.131.152.76/3110.131.152.76 – 10.131.152.7710.131.152.77
4010.131.152.78/3110.131.152.78 – 10.131.152.7910.131.152.79
4110.131.152.80/3110.131.152.80 – 10.131.152.8110.131.152.81
4210.131.152.82/3110.131.152.82 – 10.131.152.8310.131.152.83
4310.131.152.84/3110.131.152.84 – 10.131.152.8510.131.152.85
4410.131.152.86/3110.131.152.86 – 10.131.152.8710.131.152.87
4510.131.152.88/3110.131.152.88 – 10.131.152.8910.131.152.89
4610.131.152.90/3110.131.152.90 – 10.131.152.9110.131.152.91
4710.131.152.92/3110.131.152.92 – 10.131.152.9310.131.152.93
4810.131.152.94/3110.131.152.94 – 10.131.152.9510.131.152.95
4910.131.152.96/3110.131.152.96 – 10.131.152.9710.131.152.97
5010.131.152.98/3110.131.152.98 – 10.131.152.9910.131.152.99
5110.131.152.100/3110.131.152.100 – 10.131.152.10110.131.152.101
5210.131.152.102/3110.131.152.102 – 10.131.152.10310.131.152.103
5310.131.152.104/3110.131.152.104 – 10.131.152.10510.131.152.105
5410.131.152.106/3110.131.152.106 – 10.131.152.10710.131.152.107
5510.131.152.108/3110.131.152.108 – 10.131.152.10910.131.152.109
5610.131.152.110/3110.131.152.110 – 10.131.152.11110.131.152.111
5710.131.152.112/3110.131.152.112 – 10.131.152.11310.131.152.113
5810.131.152.114/3110.131.152.114 – 10.131.152.11510.131.152.115
5910.131.152.116/3110.131.152.116 – 10.131.152.11710.131.152.117
6010.131.152.118/3110.131.152.118 – 10.131.152.11910.131.152.119
6110.131.152.120/3110.131.152.120 – 10.131.152.12110.131.152.121
6210.131.152.122/3110.131.152.122 – 10.131.152.12310.131.152.123
6310.131.152.124/3110.131.152.124 – 10.131.152.12510.131.152.125
6410.131.152.126/3110.131.152.126 – 10.131.152.12710.131.152.127
6510.131.152.128/3110.131.152.128 – 10.131.152.12910.131.152.129
6610.131.152.130/3110.131.152.130 – 10.131.152.13110.131.152.131
6710.131.152.132/3110.131.152.132 – 10.131.152.13310.131.152.133
6810.131.152.134/3110.131.152.134 – 10.131.152.13510.131.152.135
6910.131.152.136/3110.131.152.136 – 10.131.152.13710.131.152.137
7010.131.152.138/3110.131.152.138 – 10.131.152.13910.131.152.139
7110.131.152.140/3110.131.152.140 – 10.131.152.14110.131.152.141
7210.131.152.142/3110.131.152.142 – 10.131.152.14310.131.152.143
7310.131.152.144/3110.131.152.144 – 10.131.152.14510.131.152.145
7410.131.152.146/3110.131.152.146 – 10.131.152.14710.131.152.147
7510.131.152.148/3110.131.152.148 – 10.131.152.14910.131.152.149
7610.131.152.150/3110.131.152.150 – 10.131.152.15110.131.152.151
7710.131.152.152/3110.131.152.152 – 10.131.152.15310.131.152.153
7810.131.152.154/3110.131.152.154 – 10.131.152.15510.131.152.155
7910.131.152.156/3110.131.152.156 – 10.131.152.15710.131.152.157
8010.131.152.158/3110.131.152.158 – 10.131.152.15910.131.152.159
8110.131.152.160/3110.131.152.160 – 10.131.152.16110.131.152.161
8210.131.152.162/3110.131.152.162 – 10.131.152.16310.131.152.163
8310.131.152.164/3110.131.152.164 – 10.131.152.16510.131.152.165
8410.131.152.166/3110.131.152.166 – 10.131.152.16710.131.152.167
8510.131.152.168/3110.131.152.168 – 10.131.152.16910.131.152.169
8610.131.152.170/3110.131.152.170 – 10.131.152.17110.131.152.171
8710.131.152.172/3110.131.152.172 – 10.131.152.17310.131.152.173
8810.131.152.174/3110.131.152.174 – 10.131.152.17510.131.152.175
8910.131.152.176/3110.131.152.176 – 10.131.152.17710.131.152.177
9010.131.152.178/3110.131.152.178 – 10.131.152.17910.131.152.179
9110.131.152.180/3110.131.152.180 – 10.131.152.18110.131.152.181
9210.131.152.182/3110.131.152.182 – 10.131.152.18310.131.152.183
9310.131.152.184/3110.131.152.184 – 10.131.152.18510.131.152.185
9410.131.152.186/3110.131.152.186 – 10.131.152.18710.131.152.187
9510.131.152.188/3110.131.152.188 – 10.131.152.18910.131.152.189
9610.131.152.190/3110.131.152.190 – 10.131.152.19110.131.152.191
9710.131.152.192/3110.131.152.192 – 10.131.152.19310.131.152.193
9810.131.152.194/3110.131.152.194 – 10.131.152.19510.131.152.195
9910.131.152.196/3110.131.152.196 – 10.131.152.19710.131.152.197
10010.131.152.198/3110.131.152.198 – 10.131.152.19910.131.152.199
10110.131.152.200/3110.131.152.200 – 10.131.152.20110.131.152.201
10210.131.152.202/3110.131.152.202 – 10.131.152.20310.131.152.203
10310.131.152.204/3110.131.152.204 – 10.131.152.20510.131.152.205
10410.131.152.206/3110.131.152.206 – 10.131.152.20710.131.152.207
10510.131.152.208/3110.131.152.208 – 10.131.152.20910.131.152.209
10610.131.152.210/3110.131.152.210 – 10.131.152.21110.131.152.211
10710.131.152.212/3110.131.152.212 – 10.131.152.21310.131.152.213
10810.131.152.214/3110.131.152.214 – 10.131.152.21510.131.152.215
10910.131.152.216/3110.131.152.216 – 10.131.152.21710.131.152.217
11010.131.152.218/3110.131.152.218 – 10.131.152.21910.131.152.219
11110.131.152.220/3110.131.152.220 – 10.131.152.22110.131.152.221
11210.131.152.222/3110.131.152.222 – 10.131.152.22310.131.152.223
11310.131.152.224/3110.131.152.224 – 10.131.152.22510.131.152.225
11410.131.152.226/3110.131.152.226 – 10.131.152.22710.131.152.227
11510.131.152.228/3110.131.152.228 – 10.131.152.22910.131.152.229
11610.131.152.230/3110.131.152.230 – 10.131.152.23110.131.152.231
11710.131.152.232/3110.131.152.232 – 10.131.152.23310.131.152.233
11810.131.152.234/3110.131.152.234 – 10.131.152.23510.131.152.235
11910.131.152.236/3110.131.152.236 – 10.131.152.23710.131.152.237
12010.131.152.238/3110.131.152.238 – 10.131.152.23910.131.152.239
12110.131.152.240/3110.131.152.240 – 10.131.152.24110.131.152.241
12210.131.152.242/3110.131.152.242 – 10.131.152.24310.131.152.243
12310.131.152.244/3110.131.152.244 – 10.131.152.24510.131.152.245
12410.131.152.246/3110.131.152.246 – 10.131.152.24710.131.152.247
12510.131.152.248/3110.131.152.248 – 10.131.152.24910.131.152.249
12610.131.152.250/3110.131.152.250 – 10.131.152.25110.131.152.251
12710.131.152.252/3110.131.152.252 – 10.131.152.25310.131.152.253
12810.131.152.254/3110.131.152.254 – 10.131.152.25510.131.152.255
01 / table

IPv4 CIDR prefix table.

Click a prefix longer than your network to split it into subnets.

prefixsubnet maskaddresseshostsin your /24
/00.0.0.04,294,967,2964,294,967,294-
/1128.0.0.02,147,483,6482,147,483,646-
/2192.0.0.01,073,741,8241,073,741,822-
/3224.0.0.0536,870,912536,870,910-
/4240.0.0.0268,435,456268,435,454-
/5248.0.0.0134,217,728134,217,726-
/6252.0.0.067,108,86467,108,862-
/7254.0.0.033,554,43233,554,430-
/8255.0.0.016,777,21616,777,214-
/9255.128.0.08,388,6088,388,606-
/10255.192.0.04,194,3044,194,302-
/11255.224.0.02,097,1522,097,150-
/12255.240.0.01,048,5761,048,574-
/13255.248.0.0524,288524,286-
/14255.252.0.0262,144262,142-
/15255.254.0.0131,072131,070-
/16255.255.0.065,53665,534-
/17255.255.128.032,76832,766-
/18255.255.192.016,38416,382-
/19255.255.224.08,1928,190-
/20255.255.240.04,0964,094-
/21255.255.248.02,0482,046-
/22255.255.252.01,0241,022-
/23255.255.254.0512510-
/24255.255.255.02562541
/25255.255.255.1281281262 split →
/26255.255.255.19264624 split →
/27255.255.255.22432308 split →
/28255.255.255.240161416 split →
/29255.255.255.2488632 split →
/30255.255.255.2524264 split →
/31255.255.255.25422128 split →
/32255.255.255.25511256 split →
02 / faq

About this calculator.

How do I use this subnet calculator?

▼

Type an IP address followed by a prefix, like 192.168.1.10/24, or by a subnet mask, like 192.168.1.10 255.255.255.0. Without a prefix it uses /24. Click a row in the table to split the network into smaller subnets.

Why are usable hosts always 2 fewer?

▼

The first address in a subnet is the network address and the last is the broadcast address, so neither can go to a device. The exceptions are /31 (point-to-point links, RFC 3021) and /32 (a single address), which use every address.

Can I use it from a terminal?

▼

Yes. curl 'ipku.in/en/tools/ipv4-subnet-calculator?q=192.168.1.10/24' returns the result as plain text.

Learn how to work it out →